Fuel pump

2006 MINI COOPER S
84,000 MILES • 1.6L • 4 CYL • 2WD • MANUAL
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MIKE PINSON
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  • 1 POST
It's supercharge. Checking the fuel presser, turn the key on and it go to 50 - 52 PSI but in 30 seconds it goes to 0.
Jun 30, 2019 at 4:47 PM
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KASEKENNY
  • CERTIFIED EXPERT
  • 18,907 POSTS
Hi Mike,

Just so I am clear, are you going key on engine off and it goes to 50 then after letting it sit, it goes to 0 or are you starting the car and it goes to 0 and the engine stalls?

If it is the first, then you have a leak externally or a bleed in the system allowing pressure to bleed off.

Let me know and we can go from there.
Jun 30, 2019 at 5:43 PM